Vortex 227 MidLope SMALLER BACE CIRCLE
 
Hydraulic Roller Camshaft & Lifters
 
For GM Gen III & Gen IV 3-Bolt LS Engines
 
💥 Overview
The Redline Cams Vortex 227 MidLope is designed for LS builders who want serious street performance, aggressive cammed idle, and strong top-end horsepower without sacrificing real drivability.
Built around a balanced 227° / 227° duration @ .050", the MidLope profile produces a distinct lopey idle, powerful midrange acceleration, and excellent high-RPM breathing. This cam bridges the gap between mild street cams and race-style grinds, making it ideal for performance LS builds that still see regular street use.
With multiple LSA options from 107°–112°, the Vortex 227 MidLope allows builders to tailor the engine’s personality — from tight, choppy idle and explosive midrange torque to a broader powerband with smoother street manners.
Expect the engine to come alive around 2,400 RPM and pull hard to approximately 6,600 RPM, depending on engine combination.
 
⚙️ Camshaft Specifications
Engine Compatibility
Any GM Gen III or Gen IV LS engine using a 3-bolt camshaft
Examples include:
LS1 • LS2 • LS3 • LS6 • LS7LM7 • LR4 • LQ4 • LQ9 • L33LY6 • L96 • L76 • L92 • L99
Works with 4.8L · 5.3L · 6.0L · 6.2L LS engines
 
Camshaft Type
Hydraulic Roller
Duration @ .050"
227° Intake/227° Exhaust
Advertised Duraition @.006: 288/288
 
Valve Lift (1.7 Rocker Ratio)
.500" Intake / Exhaust
 
Standard Lobe Separation
110° LSA
Optional LSA Options
107° • 108° • 112°
Operating RPM Range
2,400 – 6,600 RPM
Idle Character
Mid-Lope to aggressive depending on LSA
Cam Core
OEM-quality hardened cam core
Lifters
Hydraulic roller lifters included
 
🧭 Valve Timing Events @ .050"
 
107° LSA (ICL 104°)
Intake Opens: 12.5° BTDCIntake Closes: 34.5° ABDCExhaust Opens: 45.5° BBDCExhaust Closes: 1.5° ATDC
Overlap: 14°
Character:Tight separation produces maximum chop and strong midrange torque.
 
108° LSA (ICL 105°)
Intake Opens: 11.5° BTDC
Intake Closes: 35.5° ABDC
Exhaust Opens: 44.5° BBDC
Exhaust Closes: 2.5° ATDC
Overlap: 13°
Character:Aggressive idle with excellent throttle response and broad torque curve.
 
110° LSA (ICL 107°) (Standard)
Intake Opens: 10.5° BTDC
Intake Closes: 36.5° ABDC
Exhaust Opens: 43.5° BBDC
Exhaust Closes: 3.5° ATDC
Overlap: 14°
Character:Best street/strip balance with strong torque and classic cammed idle.
 
112° LSA (ICL 109°)
Intake Opens: 8.5° BTDC
Intake Closes: 38.5° ABDC
Exhaust Opens: 41.5° BBDC
Exhaust Closes: 5.5° ATDC
Overlap: 10°
Character:Smoother idle with better vacuum and broader powerband for street vehicles.
 
🚀 Performance Highlights
• Aggressive mid-lope idle sound• Strong midrange torque and acceleration• Excellent high-RPM breathing• Broad powerband from 2,400–6,600 RPM• Works extremely well with ported heads and long-tube headers• Compatible with mild nitrous systems up to 150 HP
ECU tuning required for optimal performance.
 
🔩 Recommended Valvetrain Setup
Valve Springs
Dual or beehive springs rated for .600"+ lift
Seat Pressure: 150–160 lbsOpen Pressure: 400–420 lbs
Pushrods
5/16" or 3/8" chromoly pushrods (7.400-7.500”) Length must be verified
Lifters
LS7 or equivalent hydraulic roller lifters (included)
Rocker Arms
Factory 1.7 ratio acceptableTrunnion upgrade recommended
Always verify piston-to-valve clearance and retainer-to-seal clearance during installation.
 
🏁 Converter & Drivetrain Recommendations
Street / Strip
Converter Stall: 2,600 – 3,400 RPM
Aggressive Setup (107°–108° LSA)
Converter Stall: 3,200 – 3,600 RPM
Manual Transmission
Lightweight flywheel recommended
Rear Gear Ratio
3.73+ recommended for maximum acceleration
🔧 Ideal Applications
• Street/strip LS builds targeting 400+ RWHP• Naturally aspirated performance LS builds• Manual transmission muscle cars• Higher stall automatic street builds• LS-swapped cars, trucks, and off-road builds
Why Choose Redline Cams
Redline Cams brings 35+ years of camshaft grinding experience, producing aggressive performance cam profiles using OEM-quality cam cores and precision grinding processes.
Unlike large mass-production cam companies, Redline works directly with builders to deliver proven camshaft profiles and matched valvetrain components designed for real-world performance builds.